VirtualBox

source: vbox/trunk/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm

Last change on this file was 106061, checked in by vboxsync, 2 months ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 2.7 KB
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1; $Id: bs3-cmn-PrintX32.asm 106061 2024-09-16 14:03:52Z vboxsync $
2;; @file
3; BS3Kit - Bs3PrintU32, Common.
4;
5
6;
7; Copyright (C) 2007-2024 Oracle and/or its affiliates.
8;
9; This file is part of VirtualBox base platform packages, as
10; available from https://www.virtualbox.org.
11;
12; This program is free software; you can redistribute it and/or
13; modify it under the terms of the GNU General Public License
14; as published by the Free Software Foundation, in version 3 of the
15; License.
16;
17; This program is distributed in the hope that it will be useful, but
18; WITHOUT ANY WARRANTY; without even the implied warranty of
19; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20; General Public License for more details.
21;
22; You should have received a copy of the GNU General Public License
23; along with this program; if not, see <https://www.gnu.org/licenses>.
24;
25; The contents of this file may alternatively be used under the terms
26; of the Common Development and Distribution License Version 1.0
27; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28; in the VirtualBox distribution, in which case the provisions of the
29; CDDL are applicable instead of those of the GPL.
30;
31; You may elect to license modified versions of this file under the
32; terms and conditions of either the GPL or the CDDL or both.
33;
34; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35;
36
37%include "bs3kit-template-header.mac"
38
39
40BS3_EXTERN_CMN Bs3PrintStr
41
42;;
43; Prints a 32-bit unsigned integer value as hex.
44;
45; @param [xBP + xCB*2] 32-bit value to format and print.
46;
47BS3_PROC_BEGIN_CMN Bs3PrintX32, BS3_PBC_HYBRID
48 BS3_CALL_CONV_PROLOG 1
49 push xBP
50 mov xBP, xSP
51 push sAX
52 push sDX
53 push sCX
54 push sBX
55BONLY16 push ds
56
57 mov eax, [xBP + xCB + cbCurRetAddr]
58
59 ; Allocate a stack buffer and terminate it. ds:bx points ot the end.
60 sub xSP, 30h
61BONLY16 mov bx, ss
62BONLY16 mov ds, bx
63 mov xBX, xSP
64 add xBX, 2fh
65 mov byte [xBX], 0
66
67 mov ecx, 16 ; what to divide by
68.next:
69 xor edx, edx
70 div ecx ; edx:eax / ecx -> eax and rest in edx.
71 cmp dl, 10
72 jb .decimal
73 add dl, 'a' - '0' - 10
74.decimal:
75 add dl, '0'
76 dec xBX
77 mov [BS3_ONLY_16BIT(ss:)xBX], dl
78 cmp eax, 0
79 jnz .next
80
81 ; Print the string.
82BONLY64 add rsp, 18h
83BONLY16 push ss
84 push xBX
85 BS3_CALL Bs3PrintStr, 1
86
87 add xSP, 30h + BS3_IF_16_32_64BIT(2, 0, 18h) + xCB
88BONLY16 pop ds
89 pop sBX
90 pop sCX
91 pop sDX
92 pop sAX
93 leave
94 BS3_CALL_CONV_EPILOG 1
95 BS3_HYBRID_RET
96BS3_PROC_END_CMN Bs3PrintX32
97
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